نتایج جستجو برای: laptop computer
تعداد نتایج: 579890 فیلتر نتایج به سال:
As a tendency to use new technologies, gadgets such as laptop computers are becoming more popular among students, teachers, businessmen and office workers. Today laptops are a great tool for education and learning, work and personal multimedia. Millions of men, especially those in the reproductive age, are frequently using their laptop computers on the lap (thigh). Over the past several years, ...
800x600 as a tendency to use new technologies, gadgets such as laptop computers are becoming more popular among students, teachers, businessmen and office workers. today laptops are a great tool for education and learning, work and personal multimedia. millions of men, especially those in the reproductive age, are frequently using their laptop computers on the lap (thigh). over the past several...
بررسی شیوع اختلالات اسکلتی – عضلانی در بین دانشجویان استفادهکننده از لپتاپ در دانشکده بهداشت قزوین
Background The musculoskeletal disorders consist dominate part of occupational disease. Work with Portable Computer also can became one of the predominant cause of the musculoskeletal disorders. Therefore aim of this study was assessment of musculoskeletal disorders prevalence rate among portable computer using students and assessment of pain rate in different body regions and identify of more ...
Background and purpose: Communication technologies have a dual effect on human health and life. In fact beside their major role in improving human well-being, they also have harmful consequences. This research aimed at studying media technologies and their relationship with health related quality of life in students. Materials and methods: In this cross-sectional study, a total of 567 high sch...
BACKGROUND Laptop computers may release nickel and cobalt when they come into contact with skin. Few computer brands have been studied. OBJECTIVES To evaluate nickel and cobalt release from laptop computers belonging to several brands by using spot tests, and to quantify the release from one new computer by using artificial sweat solution. METHODS Nickel and cobalt spot tests were used on t...
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